Test Index

CBSE Class 12 Chemistry 2019 Delhi Set 2 Solved Paper

© examsnet.com
Question : 1 of 10
Marks: +1, -0
SECTION - A
Arrange the following in increasing order of base strength in gas phase:
(C2H5)3N,C2H5NH2,(C2H5)2NH(\mathrm{C}_2\mathrm{H}_5)_3\mathrm{N}, \mathrm{C}_2\mathrm{H}_5\mathrm{NH}_2, (\mathrm{C}_2\mathrm{H}_5)_2\mathrm{NH}
Solution:  
Base strength is the ability to donate lone pair. Due to inductive effect of C2H5\mathrm{C}_2\mathrm{H}_5, the negative charge density on nitrogen atom increases. Therefore, lone pair is easily available for donation.
C2H5NH2<(C2H5)2NH<(C2H5)3N\mathrm{C}_2\mathrm{H}_5\mathrm{NH}_2 < (\mathrm{C}_2\mathrm{H}_5)_2\mathrm{NH} < (\mathrm{C}_2\mathrm{H}_5)_3\mathrm{N}
© examsnet.com
Go to Question:
Next Question